175
FNCA52 TJSJ 040744
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
344 AM AST WED FEB 4 2026
DISCUSSION
WINDS WILL REMAIN BREEZY TO WINDY FROM THE EAST-NORTHEAST AS THE
REMNANTS OF A FRONTAL BOUNDARY DISSIPATE OVER THE REGION. MINIMUM
RH VALUES ARE EXPECTED TO REMAIN ABOVE THE FIRE WEATHER
THRESHOLDS, REDUCING THE FIRE WEATHER RISK. ALTHOUGH FUEL MOISTURE
CONTENT AND THE RELATIVE HUMIDITY ARE NOT EXPECTED TO DROP TO
CRITICAL LEVELS, THE STRONGER THAN NORMAL WINDS COULD AID IN THE
SPREAD OF ANY WILDFIRES, STAY VIGILANT.
PRZ014-050745-
SOUTHEAST COASTAL PLAINS-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 10 20
TEMP (24H TREND) 84 (+4) 69 (-2) 85
RH % (24H TREND) 67 (-5) 98 (+7) 65
WIND 20FT/EARLY(MPH) E 19 G24 E 10 SE 11
WIND 20FT/LATE(MPH) E 19 G24 E 10 SE 11
MIXING HGT(FT-AGL/MSL)4060 4230
TRANSPORT WND (MPH) E 16 SE 10
VENT RATE (KT-FT) 56840 38070
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-050745-
SOUTHERN HILLS-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 30
TEMP (24H TREND) 80 (+4) 66 (-3) 80
RH % (24H TREND) 75 (-1) 99 (+7) 71
WIND 20FT/EARLY(MPH) E 13 E 10 SE 10
WIND 20FT/LATE(MPH) E 13 E 10 SE 10
MIXING HGT(FT-AGL/MSL)3630 4960
TRANSPORT WND (MPH) E 14 SE 9
VENT RATE (KT-FT) 43560 39680
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-050745-
NORTH COASTAL PLAINS-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 40 50
TEMP (24H TREND) 80 (+2) 68 (-3) 85
RH % (24H TREND) 80 (0) 100 (+4) 63
WIND 20FT/EARLY(MPH) E 17 G19 E 16 E 11
WIND 20FT/LATE(MPH) E 17 G19 E 16 E 11
MIXING HGT(FT-AGL/MSL)3010 3750
TRANSPORT WND (MPH) E 17 SE 8
VENT RATE (KT-FT) 45150 26250
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-050745-
NORTHERN HILLS-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 50
TEMP (24H TREND) 79 (+3) 66 (-3) 84
RH % (24H TREND) 82 (+1) 100 (+3) 64
WIND 20FT/EARLY(MPH) E 16 E 13 E 9
WIND 20FT/LATE(MPH) E 16 E 13 E 9
MIXING HGT(FT-AGL/MSL)2950 5250
TRANSPORT WND (MPH) E 15 SE 5
VENT RATE (KT-FT) 38350 21000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-050745-
WEST COAST-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 30 20
TEMP (24H TREND) 83 (+3) 69 (-1) 85
RH % (24H TREND) 72 (-1) 100 (+8) 66
WIND 20FT/EARLY(MPH) E 18 E 14 SE 13
WIND 20FT/LATE(MPH) E 18 E 14 SE 13
MIXING HGT(FT-AGL/MSL)3810 4410
TRANSPORT WND (MPH) E 15 SE 10
VENT RATE (KT-FT) 49530 39690
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-050745-
EASTERN INTERIOR-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 40 60
TEMP (24H TREND) 79 (+3) 66 (-4) 83
RH % (24H TREND) 82 (0) 100 (+2) 68
WIND 20FT/EARLY(MPH) E 13 E 13 SE 9
WIND 20FT/LATE(MPH) E 13 E 13 SE 9
MIXING HGT(FT-AGL/MSL)3590 4990
TRANSPORT WND (MPH) E 14 SE 8
VENT RATE (KT-FT) 43080 34930
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-050745-
LUQUILLO MOUNTAIN RANGE-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 60
TEMP (24H TREND) 75 (0) 65 (-3) 78
RH % (24H TREND) 82 (+4) 100 (0) 73
WIND 20FT/EARLY(MPH) E 12 E 10 SE 8
WIND 20FT/LATE(MPH) E 12 E 10 SE 8
MIXING HGT(FT-AGL/MSL)3480 3510
TRANSPORT WND (MPH) E 16 SE 8
VENT RATE (KT-FT) 48720 24570
DISPERSION 5 4
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-050745-
CENTRAL MOUNTAIN RANGE-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 20 50
TEMP (24H TREND) 77 (+1) 64 (-3) 80
RH % (24H TREND) 77 (+3) 100 (+5) 67
WIND 20FT/EARLY(MPH) E 13 E 11 SE 8
WIND 20FT/LATE(MPH) E 13 E 11 SE 8
MIXING HGT(FT-AGL/MSL)3230 6340
TRANSPORT WND (MPH) E 14 SE 6
VENT RATE (KT-FT) 38760 31700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-050745-
CAYEY MOUNTAIN RANGE-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 50
TEMP (24H TREND) 75 (0) 66 (-2) 77
RH % (24H TREND) 85 (+5) 100 (+1) 76
WIND 20FT/EARLY(MPH) E 11 E 9 SE 8
WIND 20FT/LATE(MPH) E 11 E 9 SE 8
MIXING HGT(FT-AGL/MSL)3860 4260
TRANSPORT WND (MPH) E 16 SE 9
VENT RATE (KT-FT) 54040 34080
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-050745-
VIEQUES-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 60
TEMP (24H TREND) 83 (-2) 71 (-1) 84
RH % (24H TREND) 67 (+4) 95 (-2) 61
WIND 20FT/EARLY(MPH) E 14 G19 E 13 G18 SE 9
WIND 20FT/LATE(MPH) E 14 G19 E 13 G18 SE 9
MIXING HGT(FT-AGL/MSL)3240 3090
TRANSPORT WND (MPH) E 21 E 12
VENT RATE (KT-FT) 58320 30900
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-050745-
CULEBRA-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 60
TEMP (24H TREND) 83 (-2) 73 (0) 84
RH % (24H TREND) 70 (+5) 94 (0) 63
WIND 20FT/EARLY(MPH) E 17 G21 E 16 G20 SE 10
WIND 20FT/LATE(MPH) E 17 G21 E 16 G20 SE 10
MIXING HGT(FT-AGL/MSL)3210 3150
TRANSPORT WND (MPH) E 22 SE 13
VENT RATE (KT-FT) 60990 34650
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-050745-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 0
TEMP (24H TREND) 86 (+3) 68 (-3) 86
RH % (24H TREND) 65 (+1) 97 (+10) 62
WIND 20FT/EARLY(MPH) E 18 G23 E 12 SE 17 G21
WIND 20FT/LATE(MPH) E 18 G23 E 12 SE 17 G21
MIXING HGT(FT-AGL/MSL)4240 4490
TRANSPORT WND (MPH) E 14 SE 15
VENT RATE (KT-FT) 50880 58370
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-050745-
SAINT THOMAS AND SAINT JOHN-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 60
TEMP (24H TREND) 83 (-1) 72 (-2) 84
RH % (24H TREND) 67 (+2) 96 (+2) 62
WIND 20FT/EARLY(MPH) E 16 G20 E 14 G18 SE 11
WIND 20FT/LATE(MPH) E 16 G20 E 14 G18 SE 11
MIXING HGT(FT-AGL/MSL)3420 3120
TRANSPORT WND (MPH) E 23 SE 13
VENT RATE (KT-FT) 68400 34320
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-050745-
ST CROIX-
344 AM AST WED FEB 4 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 50
TEMP (24H TREND) 84 (-1) 71 (-2) 85
RH % (24H TREND) 68 (+1) 93 (-3) 61
WIND 20FT/EARLY(MPH) E 12 E 10 SE 11
WIND 20FT/LATE(MPH) E 12 E 10 SE 11
MIXING HGT(FT-AGL/MSL)4170 3940
TRANSPORT WND (MPH) E 16 SE 13
VENT RATE (KT-FT) 58380 43340
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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